No info about availability.
CGS Dual LPG (Grayscale panel)
This is a DIY panel for the CGS Dual LPG, designed by Peter Grenader and offered by Ken Stone. It is based on the Buchla 292 and somewhat related to the Plan B Model 13 (Dual Timbral Gate).
Panel coming soon:
http://grayscale.info/panels/ken-stone-cgs-dlpg-dual-low-pass-gate/
Build docs:
http://www.cgs.synth.net/modules/lpg.html
DIY thread:
http://www.muffwiggler.com/forum/viewtopic.php?p=1579643
These merchants probably sell this module. Huh?